The Devil's Teardrop (2010)

Plot

A devastating shooting unfolds at a train station, leaving numerous casualties and chaos in its wake, perpetrated by a mysterious figure dubbed "The Digger." The FBI's investigation hits a wall, with only a cryptic handwritten letter containing demands as a lead. Agent Margurete seeks the expertise of retired analyst Kincaid, renowned for his skills in deciphering such cryptic messages. Together, they race against time to uncover the truth behind the letter and stop the Digger before more lives are lost. Tension mounts as they delve into a dangerous game of cat and mouse.